Previous threads on HN[0] and Lobsters[1]. I'll be watching this thread as well, so just ask any questions you have about the project. I've been steadily improving things, in particular adding more documentation (as well as the first two tutorials[2] for non-array programmers) and error checking in the compiler. Just recently I added the capability to draw SVGs with embedded BQN in markdown (which is processed with BQN), so expect to see some nice diagrams like [3] in the near future.
[0] https://news.ycombinator.com/item?id=24167804
[1] https://lobste.rs/s/iwqpw8/bqn_finally_apl_for_your_flying_s...
[2] https://mlochbaum.github.io/BQN/tutorial/index.html
[3] https://mlochbaum.github.io/BQN/doc/types.html